Water Quality Monitoring Data

Wells Harbor

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Maine's Beach Action Value (BAV or safety threshold) for Enterococcus bacteria in marine waters is 104 MPN/100mL.

Site Name	Date Collected	Enterococcus (MPN/100mL)
W-04	05/28/2024	345
W-04	05/29/2024	31
W-04	06/04/2024	< 10
W-04	06/11/2024	< 10
W-04	06/17/2024	< 10
W-04	06/25/2024	62
W-04	06/26/2024	< 10
W-04	07/02/2024	20
W-04	07/09/2024	52
W-04	07/16/2024	< 10
W-04	07/23/2024	275
W-04	07/24/2024	41
W-04	07/30/2024	20
W-04	08/06/2024	41
W-04	08/13/2024	< 10
W-04	08/20/2024	189
W-04	08/22/2024	295
W-04	08/27/2024	< 10
W-04	05/27/2025	20
W-04	06/03/2025	< 10
W-04	06/10/2025	135
W-04	06/11/2025	< 10
W-04	06/17/2025	< 10
W-04	06/24/2025	63
W-04	07/01/2025	< 10
W-04	07/08/2025	< 10
W-04	07/15/2025	< 10
W-04	07/22/2025	< 10
W-04	07/29/2025	20
W-04	08/05/2025	20
W-04	08/12/2025	185
W-04	08/13/2025	< 10
W-04	08/19/2025	10
W-04	08/26/2025	31
W-04	05/31/2022	< 10
W-04	06/07/2022	< 10
W-04	06/14/2022	31
W-04	06/21/2022	< 10
W-04	06/28/2022	< 10
W-04	07/05/2022	< 10
W-04	07/12/2022	< 10
W-04	07/19/2022	< 10
W-04	07/27/2022	< 10
W-04	07/28/2022	20
W-04	08/02/2022	30
W-04	08/09/2022	10
W-04	08/16/2022	10
W-04	08/23/2022	10
W-04	08/30/2022	52
W-04	05/30/2023	< 10
W-04	06/06/2023	75
W-04	06/13/2023	< 10
W-04	06/20/2023	20
W-04	06/27/2023	< 10
W-04	07/06/2023	161
W-04	07/11/2023	10
W-04	07/19/2023	< 10
W-04	07/25/2023	< 10
W-04	08/01/2023	< 10
W-04	08/08/2023	10
W-04	08/15/2023	52
W-04	08/22/2023	10
W-04	08/29/2023	20
W-04	06/16/2020	< 10
W-04	06/23/2020	63
W-04	06/30/2020	30
W-04	07/07/2020	20
W-04	07/14/2020	< 10
W-04	07/21/2020	< 10
W-04	07/28/2020	10
W-04	08/04/2020	< 10
W-04	08/11/2020	< 10
W-04	08/18/2020	< 10
W-04	08/25/2020	< 10
W-04	09/01/2020	85
W-04	06/01/2021	< 10
W-04	06/08/2021	< 10
W-04	06/15/2021	31
W-04	06/22/2021	10
W-04	06/29/2021	31
W-04	07/06/2021	< 10
W-04	07/13/2021	86
W-04	07/14/2021	< 10
W-04	07/20/2021	109
W-04	07/21/2021	20
W-04	07/27/2021	86
W-04	08/03/2021	< 10
W-04	08/10/2021	259
W-04	08/11/2021	< 10
W-04	08/17/2021	< 10
W-04	08/24/2021	813
W-04	08/25/2021	292
W-04	08/26/2021	63
W-04	08/31/2021	10
W-04	05/26/2026	20
W-04	06/02/2026	41
W-04	06/09/2026	< 10
W-04	06/16/2026	119
W-04	06/17/2026	30
W-04	06/23/2026	1100
W-04	06/24/2026	97
W-04	06/30/2026	41
W-04	07/07/2026	< 10
W-04	07/14/2026	41
W-04	07/21/2026	10
W-04	07/28/2026	20
W-04	08/04/2026	52
W-04	08/11/2026	20
W-04	08/18/2026	< 10
W-04	08/25/2026	< 10
W-04	09/01/2026	41

Download Data: Water quality data are available for download using the buttons below. This download will include date collected, time collected, Enterococcus, salinity, water temperature, and air temperature.

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*MHB's water quality data are provided in real-time and are subject to revision. This season’s data are preliminary and have not received final quality assurance/quality control (QA/QC) review.